高考英语 最后30天语法精讲 虚拟语气.doc

2013高考英语 最后30天语法精讲 虚拟语气、if 条件句 时 间从句 主句与现在相反 过去式would / should /could / might do与过去相反 had donewould / should / could have done与将来相反 过去式 were to do should dowould /should /could / might doif i were you, i would leave now. if you had asked me yesterday, i could have told you. if it should rain tomorrow, we couldnt climb.notice:错综时间条件句（根据所表示的时间调整） if you had followed me, you wouldnt miss the train now.、主语从句中的虚拟 it is (was) important (necessary, strange ) that-clause its necessary that you (should) be present at the meeting. it is (was) ordered (suggested, required, requested) that-clause it was ordered that the room (should) be cleaned.3、wish + that-clause 现在的愿望：i wish that you werent so lazy. 过去的愿望：i wish that you hadnt hurt jim so much. 将来的愿望：i wish you wouldnt talk like that.- have you ever studied french ? - no, but i wish i had.、表语从句和同位语从句中的虚拟通常由几个要求接虚拟语气的名词引起：order, demand, suggestion he gave orders that the test (should) be finished before 5:30. his suggestion is that the house (should) be built there.、宾语从句中的虚拟下列动词后的宾语从句用虚拟语气：demand, insist, order, require, etc. the judge ordered that the thief (should) not be punished. notice: suggest “暗示，表明“ her expression suggested that he was angry. insist “坚持认为是怎么回事” the arab insisted that he had never seen the camel. he insisted that john (should) do it.6、状语从句中的虚拟as if (though) 与现在相反，从句用过去时 he talks as if he knew everything. 与过去相反，从句用过去完成时 he looks (looked) as if she had wept. 客观事实，从句用陈述句语气 it looks as if you are tired.so that, even if (though) nothing could have saved him even if he had been tended .7、由介词短语引起的虚拟语气 without : without your help, i shouldnt get a result.but for”若非“： but for you, we couldnt have carried out the plan.8、句型its time + that-clause (指现在或将来） its time that you went to school .( should go to school)would rather + that-clause（指现在或将来） id rather you went home now. dont come tomorrow, id rather you came next week. what if “如果 怎么办?“ what if they should come here ?9、虚拟语气的倒装 were i you, i would leave now. had you asked me yesterday, i could have told you. should it rain tomorrow, we couldnt climb.exercises:1.we last night, but we went to the concert instead. a. would study a. must have studied c. might study d. should have studied2.-when can i come for the photos? i need them tomorrow afternoon. -they be ready by 12:00. a. can b. should c. might d. need3. -will you stay for lunch? -sorry, . my brother is coming to see me. a. i cant b. i mustnt c. i neednt d. i wont4. -write to me when you get home. - . a.i must b. i should c.i will d. i can5. the fire spread through the hotel very quickly but everyone get out. a. had to b. would c. was able to d. could6. tom ought not to me your secret, but he meant no harm. a. have told b. tell c. be telling d. having told7. a computer think for itself, it must be told what to d